JPH01246427A - Apparatus for removing residual roving in roving bobbin - Google Patents

Abstract

PURPOSE:To obtain the title apparatus constituted so as to rotatably retain a roving bobbin with a retaining device, cutting a residual roving on the roving bobbin and stripping the cut roving off and capable of efficiently removing the residual roving. CONSTITUTION:Robbing bobbins B, B... having a residual robing are hung through a bobbin hanger BH and carried to a prescribed position which stands face to face with a rotation brush 31 by a bobbin carrying device BC and rotatably retained by a retaining device 10. The residual robing is cut open to the generating line direction of the robing bobbin with a cutter device 20 and the rotation brush 31 is closed to the robing bobbin and rotated to remove the residual robing from the robing bobbin.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a roving bobbin residual roving removing device for removing residual roving from a roving bobbin that is wound up in a roving frame and unwound in a spinning frame. Regarding.

Prior Art The roving is wound up in the roving frame, the roving is unwound in the spinning frame, and the roving bobbin is conveyed back and forth between the roving frame and the spinning frame. In this case, it is necessary to go through a step of removing the residual roving remaining on the bobbin. The reason is 1. In spinning machines, in order to avoid interruptions in the supply of roving, a so-called splicing operation is performed to switch to the next roving bobbin before the roving on the roving bobbin is completely consumed. The main reason is that the spinning machine is not used, but there are also other reasons, such as the discontinuation of the use of roving due to a change in the type of spinning machine, or the inability to unwind the roving due to some reason.

On the other hand, recently, a so-called bobbin conveying device has been widely used, which continuously sends the roving bobbin, which has been unwound by the spinning frame and becomes an empty bobbin, to the roving frame while hanging in a line on a bobbin hanger. It is being used and is contributing to labor savings in spinning factories.

Therefore, in order to appropriately deal with this situation, the applicant rotates the roving bobbin by pressing a running flocking belt against the roving bobbin suspended from the bobbin hanger. Therefore, we proposed a device that can efficiently (unwind and remove) the remaining roving yarn on the roving bobbin (Japanese Patent Application Laid-Open No. 1983-90337). The yarn end of the remaining roving on the roving bobbin is captured by the hairs, and the remaining roving can be removed by sequentially winding it back by running the flocking belt and rotating the roving bobbin. .

The problem to be solved by the invention is that when this prior art is used, the residual roving wound around the roving bobbin in multiple layers is unwound sequentially starting from the top layer. When the amount of roving is large, the processing time becomes long and there is a problem that the processing efficiency remains low.

Therefore, an object of the present invention is to use a cutter to cut off the remaining roving wound around the roving bobbin in the generatrix direction of the roving bobbin. An object of the present invention is to provide a novel residual roving removal device for a roving bobbin, which can remove residual roving extremely efficiently by continuously stripping the residual roving using a rotating brush.

Means for Solving the Problems The structure of the present invention to achieve the object includes a holding device, a cutter device, and a rotating brush, the holding device rotatably holding the roving bobbin, and the cutter device The rotating brush rotates in contact with the roving bobbin and moves in the generatrix direction of the roving bobbin to cut the remaining roving on the roving bobbin. The gist is that the remaining rovings on the thread bobbin are stripped off.

In addition, the cutter device shall consist of a cutter guide and a cutter assembly, the holding device shall consist of a rotating holder, a fixed roller, and a movable roller, and the rotating brush may be provided with a cover duct. do.

With this configuration, for example, when the roving bobbin suspended and transported by the bobbin transport device is stopped at a predetermined position facing the rotating brush, the roving bobbin is suspended and transported by the bobbin transport device.
It can be rotatably held by the holding device.

Therefore, first, the remaining roving wrapped around the roving bobbin is cut in the direction of the generatrix of the roving bobbin using a cutter device, and then the rotating brush is rotated in contact with the roving bobbin.
The remaining roving yarn cut into lengths for each circumference of the roving bobbin is
The roving can be removed from the bobbin very efficiently by means of a rotating brush.

In addition, if the rotating brush is equipped with a cover duct connected to a suction device, the remaining rovings removed in this way will be suctioned as is by the suction device, transported to a predetermined cotton collection device, and collected. can do.

It works as described above.

Example Examples will be described below with reference to the drawings.

The remaining roving removal device for the roving bobbin (hereinafter simply referred to as the device) has a holding device 10, a cutter device 20, and a rotating brush 31 as main components (Fig. 1), and these components are connected to the machine. It is assembled integrally on the frame F (
Figures 2 and 3).

The roving bobbins B, B, etc. with the remaining roving yarn are suspended via the bobbin hanger BH and are continuously conveyed by the bobbin conveying device BC, and the device carries out these roving bobbins B, B, etc. For B..., the remaining roving can be removed without removing it from the bobbin hanger BH.

The holding device 10 includes one fixed roller 11 located at the height of the ring portion B1 at the upper end of the roving bobbin B, and the fixed roller 1
2 movable rollers 12.12 that can face 1
(FIGS. 1 to 3), the former is fixed downward to the upper end of the machine frame F via a bearing bracket lla and a plate-shaped mounting member 11b, while the latter is It is attached downward via a swing bracket 13. However, one end of the swing bracket 13 is pivotally attached to the machine frame F via a swing pin 13a, while the other end is connected to an air cylinder 13b. The movable roller 1 is attached to the swing bracket 13.
2. A photoelectric switch P is provided in the middle part of 12 to detect the completion of removal of the remaining roving from the roving bobbin B.
S is for installation.

The holding device 10 further includes a rotary holder 14 that protrudes upward from below the roving bobbin B and can be inserted into and removed from the lower end of the roving bobbin B. The rotating holder 14 is a tapered rotating cylindrical body with a flange 14a, and the slide base 14
b and an air cylinder 14C, it is attached so as to be vertically movable.

The cutter device 20 includes a cutter guide 21 and a cutter assembly 22. The cutter guide 21 is a long plate member with swing pins 21a, 21a protruding from the center of the cutter guide. It is pivotally attached to the machine frame F so as to be swingable with respect to B. That is, the cutter guide 21 is disposed in the generatrix direction of the roving bobbin B, and an air cylinder 21C is connected to its upper end.

The cutter assembly 22 includes two plates 22a, 22a that sandwich both sides of the cutter guide 21, and the cutter guide 21.
a guide roller 22b that rolls in contact with both front and rear end surfaces of the
22b... and the plate material 22 via the bracket 22c.
It consists of a blade 22d held by a s 22a (
Figure 4). However, the blade 22d is arranged in the cutter assembly 2 in such a way that its cutting edge can substantially touch the peripheral wall of the roving bobbin B when the cutter guide 21 takes a vertical position.
It protrudes in front of 2.

An air cylinder 23 is fixed to the rear end surface of the cutter guide 21 (FIGS. 1 and 2), and the tip of the rod is connected to the cutter assembly 22 through a bracket 23a.
is connected to.

The rotating brush 31 includes bearings 31a at both upper and lower ends of the shaft,
It is arranged vertically via a belt 31a (FIGS. 1 to 3) and is connected to a motor 31c via a belt 31b. However, the rotating brush 31 and the motor 31
c is attached to a bracket 32 that is swingable around a fixed pin 32a, and an air cylinder 32b is connected to the bracket 32. Therefore, it is assumed that the rotating brush 31 can rotate so as to be in contact with the entire length of the roving bobbin B when the air cylinder 32b is extended.

A cover duct 33 is formed around the rotating brush 31, and can be connected to a suction device (not shown) via a duct 33a.

The apparatus first shortens the air cylinder 14c to lower the rotary holder 14, shortens the air cylinder 13b to retract the movable roller 12.12 backward, and shortens the air cylinder 21c to move the cutter guide 21 backward. The air cylinder 32b is shortened to move the rotary brush 31 backward, and the air cylinder 23 is further extended to move the cutter assembly
2 at the upper limit and wait.

Next, the bobbin conveying device BC is tact-feeded by one pitch (in the direction of the arrow in FIG. Stop at the appropriate position.

Next, the air cylinder 14c is extended and the rotary holder 1
4 upward, insert it into the lower end of the roving bobbin B, and extend the air cylinder 13b.
Since the swing bracket 13 rotates forward around the swing pin 13a (in the two directions indicated by the arrow in the figure), the movable roller 12.12 has a roving bobbin B between it and the fixed roller 11.
The roving bobbin B can be positioned by sandwiching the ring portion B1 at the upper end of the bobbin (double-dashed line in the figure).

Moreover, at this time, the roving bobbin B is held by the rotary holder 14, the rotary roller 11, and the movable roller 12, 12, and is freely rotatable. Note that the position of the roving bobbin B held in this manner is approximately the same as the transport path of the bobbin transport device BC, and therefore the roving bobbin B is suspended by the bobbin hanger BH. In addition, the position and posture shall not change significantly.

Next, when the air cylinder 21c is extended, the cutter guide 21 rotates around the swing pins 21a, 21a (in the three directions indicated by the arrows in FIG. 5) and stands vertically (as shown by the solid line in the figure). As a result, the blade 22d of the cutter assembly 22
moves forward so that its cutting edge almost touches the circumferential wall of the roving bobbin B, so if the air cylinder 23 is shortened in this state, the cutter assembly 22 is guided by the cutter guide 21 and descends (as shown in the figure). (two-dot chain line), the blade 22d is
The remaining roving on the roving bobbin B can be cut in the direction of its generatrix. However, the blade 22d is cutter assembly 2.
At the upper limit position of 2, the cutter assembly 22 faces the roving bobbin B directly below the ring portion B1 at its upper end, while at the lower limit of the cutter assembly 22, it faces the lower end of the roving bobbin B. , the stroke of the air cylinder 23 is selected.

Next, the air cylinder 21c is shortened and the cutter guide 2
1 is tilted rearward (double-dashed line in the same figure), the blade 22d is retracted backward, and the air cylinder 32b is extended, the bracket 3 to which the rotating brush 31 and the like are assembled is removed.
2 rotates around the fixed pin 32a (in four directions indicated by arrows in FIGS. 3 and 6), and the rotating brush 31 is pressed against the roving bobbin B (solid line in FIG. 6). Therefore, if the motor 31C is started at the same time, the rotating brush 31 rotates in the five directions indicated by the arrows in the figure while contacting the roving bobbin B, so that the remaining roving (not shown) on the roving bobbin B is removed by the rotating brush 31. At this time, the remaining roving is cut by the blade 22d of the cutter device 20 every circumferential length, and the roving bobbin B is continuously stripped off by the rotating brush 31. Since the remaining rovings are forcibly rotated, stripping and removal of the remaining rovings is extremely smooth, and most of the remaining rovings are removed in an extremely short period of time.

Note that the ends of the remaining rovings in the lowest layer portion that were not cut by the blade 22d are captured by the bristles of the rotating brush 31, and can be easily removed.

The remaining roving yarn removed from the roving bobbin B in this way is
As waste cotton, it can be guided through the duct cover 33 and the duct 33a, sucked into a suction device (not shown) (in six directions indicated by arrows in the figure), and collected in a cotton collecting device (not shown). Further, the remaining roving yarn being removed from the roving bobbin B can be detected by the optical axis PSa of the photoelectric switch PS projected into the duct cover 33 through the small hole 33b. The completion of removal of all the remaining rovings on the roving bobbin B can be detected by the fact that the operation has stopped.

Therefore, when the photoelectric switch PS returns, the motor 31c
and shorten the air cylinder 32b,
The rotating brush 31 is separated from the roving bobbin B, the air cylinders 13b and 14c are shortened, and the movable roller 12
．． 12 and the rotary holder 14 are retracted backward and downward, respectively, and the roving bobbin B is released.

Subsequently, the bobbin conveying device BC is fed by one pitch tact, and the process for the next roving bobbin B is repeated in the same manner. Note that the cutter assembly 22 is configured to tilt the cutter guide 21 rearward and return it to its upper limit at an appropriate timing while the blade 22d is retracted.

In the above explanation, the photoelectric switch PS is for detecting the completion of removal of the remaining roving yarn on the roving bobbin B and stopping the motor 31C.
It goes without saying that a time switch may be used to set an appropriate length of operation time.

Further, since the pressing force of the rotary brush 31 against the roving bobbin B is exerted by the air cylinder 32b, the force can be set freely, and the remaining roving can be peeled off from the roving bobbin B. Even if the effective diameter changes, constant pressing always applies force to the rotating brush 31.
can be pressed against the roving bobbin B.

Another embodiment The blade 22d of the cutter assembly 22 has notches 22e, 2
2e can be a symmetrically formed circular blade (FIG. 7). It can be attached to the bracket 22c via a fixing pin 22f and a set screw 22g, and if used in a position where one notch 22e faces the ring part B1 of the roving bobbin B, the ring part B1 In addition to being able to cut the remaining roving directly under the blade 22d, the position of the cutting edge to be used can be changed by rotating the blade 22d by 180 degrees, thereby doubling the usable period of the blade 22d. be able to.

In each of the above embodiments, the roving bobbin BS to be processed
B... is assumed to be held by the holding device 10 while being suspended from the bobbin hanger BH of the bobbin conveying device BC, but in the present invention, the roving bobbin B is manually or automatically removed from the bobbin hanger BH. Afterwards, it may be held in the holding device 10 and used. Even if the bobbin hanger BH is non-rotatable, it can be handled.

Furthermore, the holding device 10, the cutter device 20, and the rotating brush 31 are arranged as a unit, and a plurality of units are arranged in parallel according to the hanging pitch of the roving bobbin BSB on the bobbin conveying device BC. , it is also possible to simultaneously process a plurality of roving bobbins B, B, etc. simultaneously. The effective processing time required for each roving bobbin B can be further reduced.

DETAILED DESCRIPTION OF THE INVENTION As described in detail, the present invention includes a holding device, a cutter device, and a rotating brush, and removes the remaining roving on the roving bobbin rotatably held by the holding device by using the cutter. By cutting the remaining roving yarn in the generatrix direction using a device and continuously stripping it off using a rotating brush, the remaining roving yarn is cut every circumferential length of the remaining roving yarn. This is an extremely advantageous feature in that there is no risk of unduly slowing down the conveyance speed when it is incorporated into a conveyance line that uses a bobbin conveyance device. It has a positive effect.

[Brief explanation of the drawing]

Figures 1 to 6 show examples, with Figure 1 being an exploded perspective view of the main parts, Figure 2 being an explanatory side view of the whole with some notches, and Figure 3
The figure is an explanatory overall plan view, Fig. 4 is an enlarged exploded explanatory view of the main parts of Fig. 2, Fig. 5 is an enlarged explanatory view of the main parts of Fig. 2, and Fig. 6 is an X-X line arrow in Fig. 2. FIG. 3 is a cross-sectional explanatory diagram. FIG. 7 is a diagram corresponding to FIG. 4 showing another embodiment. B...Roving bobbin B1...Ring part 10...
Holding device 11... Fixed roller 12... Movable roller 14.
...Rotating holder 20...Cutter device 21...-Cutter guide 22
・・・Cutter assembly

Claims (1)

[Scope of Claims] 1) A holding device that rotatably holds a roving bobbin; A residual roving removal device for a roving bobbin, comprising a cutter device for cutting the residual roving yarn on the roving bobbin, and a rotating brush that rotates in contact with the roving bobbin to strip off the residual roving yarn on the roving bobbin. 2) The cutter device includes a cutter guide that is disposed in the generatrix direction of the roving bobbin and is swingable relative to the roving bobbin, and a cutter assembly that moves up and down along the cutter guide. A device for removing residual roving from a roving bobbin according to claim 1. 3) A patent claim characterized in that the holding device includes a rotating holder that is inserted into and removed from the lower end of the roving bobbin, and a fixed roller and a movable roller that roll in contact with a ring portion at the upper end of the roving bobbin. A residual roving removal device for a roving bobbin according to item 1 or 2. 4) The rotating brush includes a cover duct connected to a suction device.
A device for removing residual roving from a roving bobbin according to any one of items 1 to 3.